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How Do I Effectively Pass Values Between Pages in XAML Applications?

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Jan 05, 2025 pm 03:26 PM

How Do I Effectively Pass Values Between Pages in XAML Applications?

Exploring Options for Passing Values in XAML Applications

In XAML applications, passing parameters between pages is crucial. There are two primary methods for navigation: Uri navigation and manual navigation.

Uri navigation employs a Uri object to specify the destination page, with query strings or URL-encoded instances used to pass parameters.

Manual navigation involves creating a new Page object and passing parameters as arguments to its constructor.

Passing Parameters in Different Platforms

Windows Phone and Windows 8 offer distinct approaches to parameter passing:

Windows Phone: Parameters are passed via the query string or as an instance in Uri navigation.
Windows 8: Pages are navigated by specifying the page type and passing parameters as objects.

Techniques for Passing Values

Query String:

Convenient for passing simple data.
Converts data to strings and URL-encodes it.

NavigationEventArgs:

Used for passing complex objects.
Access the destination page in the OnNavigatedFrom event handler and set its properties.

Manual Navigation:

Pass parameters directly to the constructor of the destination page.

Complex Object Passing

To pass complex objects, consider using either the query string or NavigationEventArgs. Additionally, you can store data in custom properties of the Application class or Application.Current.Properties.

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